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ALT2: Difference between revisions

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* [[SUB]] #n
* [[SUB]] #n


Many instructions clear the ALT2 flag.
Many instructions clear the ALT2 flag, including:
 
* [[GSU/ADC|ADC]] R<sub>n</sub>
* [[GSU/ADC|ADC]] #n
* [[ADD]] R<sub>n</sub>
* [[ADD]] #n
* [[GSU/AND|AND]] R<sub>n</sub>
* [[GSU/AND|AND]] #n
* [[ASR]]
* [[BIC]] R<sub>n</sub>
* [[BIC]] #n
* [[CACHE]]
* [[CMODE]]
* [[GSU/CMP|CMP]] R<sub>n</sub>
* [[COLOR]]
* [[GSU/DEC|DEC]] R<sub>n</sub>
* [[DIV2]]
* [[FMULT]]
* [[GETB]]
* [[GETBH]]
* [[GETBL]]
* [[GETBS]]
* [[GETC]]
* [[HIB]]
* [[IBT]] R<sub>n</sub>, #pp
* [[GSU/INC|INC]] R<sub>n</sub>
* [[IWT]] R<sub>n</sub>, #xx
* [[GSU/JMP|JMP]] R<sub>n</sub>
* [[LDB]] (R<sub>m</sub>)
* [[LDW]] (R<sub>m</sub>)
* [[LEA]] R<sub>n</sub>, xx
* [[LINK]] #n
* [[LJMP]] R<sub>n</sub>
* [[GSU/LM|LM]] R<sub>n</sub>, (xx)
* [[LMS]] R<sub>n</sub>, (yy)
* [[LMULT]]
* [[LOB]]
* [[LOOP]]
* [[GSU/LSR|LSR]]
* [[MERGE]]
* [[GSU/MOVE|MOVE]] R<sub>n</sub>, R<sub>n</sub>'
* [[MOVES]] R<sub>n</sub>, R<sub>n</sub>'
* [[MULT]] R<sub>n</sub>
* [[MULT]] #n
* [[GSU/NOP|NOP]]
* [[NOT]]
* [[OR]] R<sub>n</sub>
* [[OR]] #n
* [[PLOT]]
* [[RAMB]]
* [[GSU/ROL|ROL]]
* [[ROMB]]
* [[GSU/ROR|ROR]]
* [[RPIX]]
* [[GSU/SBC|SBC]] R<sub>n</sub>
* [[SBK]]
* [[SEX]]
* [[SM]] (xx), R<sub>n</sub>
* [[SMS]] (yy), R<sub>n</sub>
* [[STB]] (R<sub>m</sub>)
* [[STOP]]
* [[STW]] (R<sub>m</sub>)
* [[SUB]] R<sub>n</sub>
* [[SUB]] #n
* [[SWAP]]
* [[UMULT]] R<sub>n</sub>
* and presumably UMULT #n too


==== Syntax ====
==== Syntax ====

Revision as of 03:54, 16 July 2024

Basic Info
Addressing Mode Opcode Length ROM Speed RAM Speed Cache Speed
Implied (type 2) 3E 1 byte 3 cycles 3 cycles 1 cycle
Flags Affected
B ALT1 ALT2 O/V S CY Z
. . 1 . . . .

ALT2 is both the name of a Super FX flag and the flag prefix instruction that sets it. It is bit 9 of the status flag register.

The following instructions require ALT2:

Many instructions clear the ALT2 flag, including:

Syntax

ALT2

See Also

External Links